Vulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China

The increasing trend of extreme heat events poses serious implications for rice production in China, especially when it coincides with the heat-sensitive reproductive growth period (RGP) leading to high temperature-induced spikelet sterility. (2) Methods: This study analyzed the long-term meteorolog...

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Autores principales:	Muhammad Ishaq Asif Rehmani, Chengqiang Ding, Ganghua Li, Syed Tahir Ata-Ul-Karim, Adel Hadifa, Muhammad Amjad Bashir, Mohamed Hashem, Saad Alamri, Fahad Al-Zubair, Yanfeng Ding
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Climate change Diurnal temperature range Hot days Hot nights Global warming Temperature extremes Science (General) Q1-390
Acceso en línea:	https://doaj.org/article/17cf79d7e66f4f23909f1e3ced783b63
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spelling	oai:doaj.org-article:17cf79d7e66f4f23909f1e3ced783b632021-11-18T04:43:55ZVulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China1018-364710.1016/j.jksus.2021.101599https://doaj.org/article/17cf79d7e66f4f23909f1e3ced783b632021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1018364721002615https://doaj.org/toc/1018-3647The increasing trend of extreme heat events poses serious implications for rice production in China, especially when it coincides with the heat-sensitive reproductive growth period (RGP) leading to high temperature-induced spikelet sterility. (2) Methods: This study analyzed the long-term meteorological data of Jiangsu province, located at lower reaches of Yangtze River Valley, to ascertain changing trends in temperature extremes. Moreover, stress days and nights were derived from temperature extremes, during RGP as a proxy of rice sterility in the province. The stress days were defined in three ways, with higher daily maximum (≥35 °C, hot day, HD), and minimum temperature (≥28 °C, hot night, HN) and days with both critical limits (severe hot day, SHD). (3) Results: The analysis of data revealed that a definite warming hiatus period in the 1970s and a transitional phase in 1980s were evident for daily maximum temperatures (TMX) in the province. Warm phases since 1990s were evident for both day and night temperature extremes. Asymmetric warming of TMX and daily minimum (TMN) temperatures reduced diurnal temperature range (DTR) over time. The slight negative trend for TMX and HD were observed, while trends for TMN, HN and SHD were strongly positive in the province with regional variations. (4) Conclusion: Observed increasing trends of TMN, HNs, and SHDs, as well as the decreasing DTR during rice RGP can be a threat to rice production in the province. Rice crop in the Southern Jiangsu is more vulnerable to higher temperature extremes while in the northern Jiangsu, decreasing DTR can be crucial. These findings could have useful implications for improving rice yield under changing climate.Muhammad Ishaq Asif RehmaniChengqiang DingGanghua LiSyed Tahir Ata-Ul-KarimAdel HadifaMuhammad Amjad BashirMohamed HashemSaad AlamriFahad Al-ZubairYanfeng DingElsevierarticleClimate changeDiurnal temperature rangeHot daysHot nightsGlobal warmingTemperature extremesScience (General)Q1-390ENJournal of King Saud University: Science, Vol 33, Iss 8, Pp 101599- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Climate change Diurnal temperature range Hot days Hot nights Global warming Temperature extremes Science (General) Q1-390
spellingShingle	Climate change Diurnal temperature range Hot days Hot nights Global warming Temperature extremes Science (General) Q1-390 Muhammad Ishaq Asif Rehmani Chengqiang Ding Ganghua Li Syed Tahir Ata-Ul-Karim Adel Hadifa Muhammad Amjad Bashir Mohamed Hashem Saad Alamri Fahad Al-Zubair Yanfeng Ding Vulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China
description	The increasing trend of extreme heat events poses serious implications for rice production in China, especially when it coincides with the heat-sensitive reproductive growth period (RGP) leading to high temperature-induced spikelet sterility. (2) Methods: This study analyzed the long-term meteorological data of Jiangsu province, located at lower reaches of Yangtze River Valley, to ascertain changing trends in temperature extremes. Moreover, stress days and nights were derived from temperature extremes, during RGP as a proxy of rice sterility in the province. The stress days were defined in three ways, with higher daily maximum (≥35 °C, hot day, HD), and minimum temperature (≥28 °C, hot night, HN) and days with both critical limits (severe hot day, SHD). (3) Results: The analysis of data revealed that a definite warming hiatus period in the 1970s and a transitional phase in 1980s were evident for daily maximum temperatures (TMX) in the province. Warm phases since 1990s were evident for both day and night temperature extremes. Asymmetric warming of TMX and daily minimum (TMN) temperatures reduced diurnal temperature range (DTR) over time. The slight negative trend for TMX and HD were observed, while trends for TMN, HN and SHD were strongly positive in the province with regional variations. (4) Conclusion: Observed increasing trends of TMN, HNs, and SHDs, as well as the decreasing DTR during rice RGP can be a threat to rice production in the province. Rice crop in the Southern Jiangsu is more vulnerable to higher temperature extremes while in the northern Jiangsu, decreasing DTR can be crucial. These findings could have useful implications for improving rice yield under changing climate.
format	article
author	Muhammad Ishaq Asif Rehmani Chengqiang Ding Ganghua Li Syed Tahir Ata-Ul-Karim Adel Hadifa Muhammad Amjad Bashir Mohamed Hashem Saad Alamri Fahad Al-Zubair Yanfeng Ding
author_facet	Muhammad Ishaq Asif Rehmani Chengqiang Ding Ganghua Li Syed Tahir Ata-Ul-Karim Adel Hadifa Muhammad Amjad Bashir Mohamed Hashem Saad Alamri Fahad Al-Zubair Yanfeng Ding
author_sort	Muhammad Ishaq Asif Rehmani
title	Vulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China
title_short	Vulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China
title_full	Vulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China
title_fullStr	Vulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China
title_full_unstemmed	Vulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China
title_sort	vulnerability of rice production to temperature extremes during rice reproductive stage in yangtze river valley, china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/17cf79d7e66f4f23909f1e3ced783b63
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Vulnerability of rice production to temperature extremes during rice reproductive stage in Yangtze River Valley, China

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